Completed it a long time ago, but now, after playing it for a couple worlds, yeah it can definitely be a 10+ hour-long slog that I probably wouldn't want to do again and would rather just focus on my backlog, but it's still fun, and the Pikmin cutscenes were pretty cute to look at (that you can skip after seeing them the first time), alongside the description for treasure being just as grand as always. I say it's worth at least one try.